CN214142403U - Large-scale sugar-making evaporating pot - Google Patents

Abstract

The utility model discloses a large sugar-making evaporating pot, which comprises an evaporating pot body, wherein the evaporating pot body consists of a feeding section, a heating section and an evaporating section which are sequentially connected into a whole from bottom to top, the heating section comprises a heating shell, an upper tube plate, a lower tube plate, a central downcomer, a heat exchange tube and a steam ring tube, the openings at the upper end and the lower end of the heating shell are respectively connected by the upper tube plate and the lower tube plate in a sealing way, the central downcomer is vertically arranged in the center of the heating shell and fixedly penetrates between the upper tube plate and the lower tube plate, the feeding section and the evaporating section are respectively communicated by the central downcomer and the heat exchange tube, a plurality of heat exchange tubes are vertically arranged between the periphery of the central downcomer and the inner wall of the heating shell, the steam ring pipe is arranged on the outer wall of the middle upper part of the heating shell along the circumferential direction, and a plurality of first condensed water output ports are distributed on the side wall of the bottom end of the heating shell at intervals. The utility model discloses can effectually make the separation of sugar and steam in the juice vapour, realize the purpose of high-efficient evaporation, juice vapour separation.

Description

Large-scale sugar-making evaporating pot

Technical Field

The utility model relates to a sugaring evaporation equipment field especially relates to a large-scale sugaring evaporating pot.

Background

The evaporating pot is a large-scale evaporating device special for a sugar refinery, and is mainly used for heating a solution containing non-volatile solutes to boiling, so that a part of the solvent is vaporized, and the solution is concentrated. The evaporation operation of the evaporation tank used in the sugar refinery is to heat the water solution containing the sugar which is a non-volatile solute to boiling, so as to separate juice steam from sugar juice, thereby achieving the purpose of evaporation concentration, so as to obtain concentrated sugar solution and obtain pure syrup. The evaporating pot widely used at present comprises a multi-diameter evaporating pot and a central liquid-dropping tube type evaporating pot, wherein the multi-diameter evaporating pot is not beneficial to the optimization and selection of material thickness in strength design, the work and the cost are increased due to more structures in manufacturing, and the control is not beneficial to operation; the main body of the central down-flow tubular evaporating pot is a heating body and an evaporating chamber, the heating body is composed of an upright heating tube bundle, and the middle of the heating tube bundle is a central down-flow tube with a larger diameter. The evaporation chamber is a space for vapor-liquid separation. The central down-flow tube evaporator of the evaporator has the advantages of compact structure, convenient manufacture, reliable operation, good solution circulation, high heat transfer efficiency and wide application, is called as a standard evaporator, but has the defects of large solution viscosity, high boiling point and the like because the circulation of the solution ensures that the concentration of the solution in the central down-flow tube evaporator is close to that of the finished solution due to the limitation of the structure and the lower circulation speed of the solution. In addition, the heating chamber of such a central downcomer evaporator is not easily cleaned. Therefore, it is necessary to design a device which has a simple structure and can quickly catch juice in evaporation work, so that the evaporated juice steam can retain higher heat for circulation, and the energy loss is reduced, thereby effectively reducing the investment cost and the operation cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale sugar-making evaporating pot, the utility model discloses an evaporating pot adopts shell and tube heat transfer structure, changes the changeable footpath structure of current situation evaporimeter, uses the optimal design that the evaporating pot was realized to simpler compact structure, can effectually make sugar and steam separation in the juice vapour, realizes high-efficient evaporation, the purpose of juice vapour separation. In order to realize the purpose, the utility model discloses a following technological effect:

according to one aspect of the utility model, a large sugar-making evaporating pot is provided, which comprises an evaporating pot body, a feeding section, a heating section and an evaporating section, wherein the evaporating pot body is sequentially connected into a whole from bottom to top, the heating section comprises a heating shell, an upper tube plate, a lower tube plate, a central down-flow pipe, a heat exchange pipe and a steam ring pipe, the openings at the upper end and the lower end of the heating shell are respectively connected with the upper tube plate and the lower tube plate in a sealing way, the upper tube plate and the lower tube plate are supported and fixed in the heating shell through a Chinese character 'mi' -shaped support, the central down-flow pipe is vertically arranged in the center of the heating shell and fixedly penetrates between the upper tube plate and the lower tube plate, the upper end of the feeding section is fixedly connected with the lower end of the heating shell, the upper end of the heating shell is fixedly connected with the evaporating section, and the feeding section is communicated with the evaporating section through the central down-flow pipe and the heat exchange pipe respectively, the central downcomer is arranged on the outer wall of the middle upper portion of the heating shell, the steam ring pipe is arranged along the circumferential direction and communicated with the heating shell, an upper port of the central downcomer and an upper port of the heat exchange pipe are respectively flush with the outer surface of the upper tube plate, a lower port of the central downcomer and a lower port of the heat exchange pipe are respectively flush with the outer surface of the lower tube plate, and a plurality of first condensed water output ports are distributed on the side wall of the bottom end of the heating shell at intervals.

In a further preferred embodiment of the above-described scheme, a steam circulation inlet is provided on the outer side wall of the steam loop, a plurality of strip-shaped steam inlets communicating with the heating housing are provided along the inner side wall of the steam loop, and a safety valve is provided on the steam circulation inlet.

In a further preferred embodiment of the above scheme, the steam loop pipe is further provided with a pressure gauge interface, a temperature gauge interface and a plurality of steam balance ports distributed at equal intervals, and the side wall of the steam loop pipe is provided with a water filling port.

In a further preferred mode of the above scheme, the feeding section comprises a spherical cap-shaped seal head shell, a sugar juice inlet pipe, a sugar juice outlet pipe and a condensed water outlet pipe, the spherical cap-shaped seal head shell is a seal cavity shell with a closed lower end and a closed upper end, the upper end of the spherical cap-shaped seal head shell is fixedly connected with the lower end of the heating shell, a plurality of sugar juice inlet pipes extending into the spherical head shell from the outside are arranged around the center of the bottom of the spherical head shell, the sugar juice outlet pipe is arranged in the center of the bottom of the spherical head shell, the lower end of the sugar juice outlet pipe extends out from the bottom end inside the spherical cap-shaped seal head shell, the upper end of the sugar juice outlet pipe extends into the central liquid descending pipe, a plurality of second condensate water output ports communicated with the upper surface of the lower tube plate are arranged at the top end of the condensate water outlet pipe, the second condensate water output port is connected to the outside of the spherical head shell through a condensate water outlet pipe.

According to the scheme, the sugar juice conveying main pipe is arranged below the outer portion of the bottom end of the spherical cap-shaped seal head shell, each condensed water outlet pipe is communicated with the sugar juice conveying main pipe, a sugar juice drain outlet is formed in the center close to the bottom end of the spherical cap-shaped seal head shell, and a feeding inspection hole is formed in the side wall of the spherical cap-shaped seal head shell.

In a further preferred embodiment of the above scheme, the evaporation section comprises an evaporation cylinder, an evaporation sealing cover, a lower access hole, a juice vapor outlet, an upper access hole, a pressure relief hole, an evaporation balance hole, a sight glass with a lamp, an evaporation water inlet, a thermometer interface, a pressure gauge interface and a flat sight glass, the upper and lower ends of the evaporation cylinder are open, the lower end of the evaporation cylinder is hermetically welded to the upper end of the heating shell, the two ends of the central downcomer and the two ends of the heat exchange tube are respectively communicated between the evaporation cylinder and the feeding section, the evaporation sealing cover is hermetically fixed to the upper end of the evaporation cylinder, the juice vapor outlet is arranged at the center of the top end of the evaporation sealing cover, the upper access hole is arranged on the side wall of the evaporation sealing cover, the evaporation balance holes are arranged on the side wall of the upper end of the evaporation cylinder, and the lower access hole and the thermometer interface are respectively arranged, the side wall of the evaporation cylinder above the thermometer interface is provided with the sight glass with the lamp, the side wall of the evaporation cylinder between the thermometer interface and the sight glass with the lamp is provided with a plurality of evaporation water inlets, and the side wall of the evaporation cylinder between the lower access hole and the thermometer interface is respectively provided with the pressure gauge interface and the flat sight glass.

In a further preferred embodiment of the above-mentioned solution, a juice vapor flow blocking assembly is disposed at an upper opening in the evaporation cylinder, and a cleaning pipeline is disposed above the juice vapor flow blocking assembly and in the evaporation sealing cover.

Preferably, the central line of the sight glass with the lamp extends into the evaporation cylinder and inclines towards the bottom end of the evaporation cylinder, the included angle between the central line of the sight glass with the lamp and the central line of the evaporation cylinder is 45-60 degrees, and the ratio of the height to the diameter of the evaporation cylinder is 1: 1-2: 1.

According to the scheme, the multiple paths of non-condensing discharge pipelines are arranged in the evaporation cylinder, the output ends of the non-condensing discharge pipelines are laid along the upper pipe plate and extend to the outside of the evaporation cylinder, and the collection ends of the non-condensing discharge pipelines are laid along the surface of the upper pipe plate and the outer wall of the central downcomer in sequence and extend to the upper part of the lower pipe plate in the heating shell.

To sum up, the utility model adopts the above technical scheme, the utility model discloses an following technological effect has:

the utility model discloses an evaporating pot adopts shell and tube heat transfer structure, change the changeable footpath structure of current situation evaporimeter, use the optimal design that the evaporating pot was realized to simpler compact structure, the sugar juice heats through the heating pipe, and at the feeding section, carry out the inner loop through central downcomer between heating section and the evaporating section, then discharge through the sugar juice outlet in the central downcomer, guaranteed the dwell time of sugar juice and can realize continuous sugar juice discharging, and make sugar juice and steam carry out heat exchange, become vapour state with some water in the sugar juice, be provided with V-arrangement buckled plate realization high-efficient juice extractor on evaporating chamber upper portion, can effectually make sugar and vapor separation in the juice, thereby isolate some water in the sugar juice, the material depth improves, the evaporation concentration purpose that has reached the high-efficient evaporation, the purpose of juice vapour separation; the evaporation section has compact structure, reliable operation and good heat transfer effect.

Drawings

FIG. 1 is a schematic structural view of a large-scale sugar-making evaporation tank of the present invention;

FIG. 2 is a structural diagram of the position relationship among the feeding section, the heating section and the evaporation section of the present invention;

FIG. 3 is a schematic view of the top view structure of the feeding section of the present invention

Fig. 4 is a schematic top view of the heating section of the present invention;

FIG. 5 is a front view of the juice vapor communication barrier assembly of the present invention;

FIG. 6 is a top view of the juice vapor communication barrier assembly of the present invention;

fig. 7 is a schematic view of the installation structure of the V-shaped corrugated plate of the present invention;

fig. 8 is a front view of the mounting structure of the non-condensed steam discharge pipeline of the present invention;

fig. 9 is a plan view of the mounting structure of the non-condensed steam discharge pipeline of the present invention;

in the attached drawings, an evaporation tank body 100, a feeding section 1, a heating section 2, an evaporation section 3, a crown-shaped seal head shell 1.1, a sugar juice inlet pipe 1.2, a sugar juice conveying main pipe 1.20, a sugar juice outlet pipe 1.3, a condensed water outlet pipe 1.4, a sugar juice drain outlet 1.5, a feeding inspection port 1.6, a hot shell 2.1, an upper pipe plate 2.2, a lower pipe plate 2.3, a central downcomer 2.4, a heat exchange pipe 2.5, a steam loop 2.6, a steam circulation inlet 2.60, a steam circulation outlet 2.61, a safety valve 2.62, a first condensed water outlet 2.7, a Mi-shaped support 2.8, a water filling port 2.9, a pressure gauge interface 2.10, a thermometer interface 2.11, a steam balance port 2.12, a second outlet 2.20, an evaporation cylinder body 3.0, an evaporation sealing cover body 3.1, a lower inspection hole 3.2, a juice steam outlet 3.3, an upper inspection hole 3.4, a pressure relief inspection hole 3.5, a pressure balance port 3.6, an evaporation lamp interface 3.6, a water inlet 3.9, a pressure gauge interface 3.7, 3.11 parts of a flat sight glass, 3.12 parts of a cleaning pipeline, 3.13 parts of a juice and steam circulation blocking assembly, 3.14 parts of an incondensable steam discharge pipeline, 3.130 parts of a V-shaped corrugated plate, 3.131 parts of a baffle, 3.132 parts of a supporting frame and 3.133 parts of an exhaust channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and by referring to preferred embodiments. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.

Referring to fig. 1, 2, 3 and 4, the large sugar-making evaporation tank according to the present invention comprises an evaporation tank body 100, the evaporation tank body 100 is composed of a feeding section 1, a heating section 2 and an evaporation section 3 which are sequentially connected into a whole from bottom to top, the heating section 2 comprises a heating shell 2.1, an upper tube plate 2.2, a lower tube plate 2.3, a central downcomer 2.4, a heat exchange tube 2.5 and a steam loop 2.6, the openings at the upper and lower ends of the heating shell 2.1 are respectively hermetically connected through the upper tube plate 2.3 and the lower tube plate 2.2, the upper tube plate 2.2 and the lower tube plate 2.3 are fixed in the heating shell 2.1 through a m-shaped support 2.8, the central downcomer 2.4 is vertically arranged in the center of the heating shell 2.1 and fixedly penetrates between the upper tube plate 2.3 and the lower tube plate 2.2, the upper end of the feeding section 1 is fixedly connected with the lower end of the heating shell 2.1, and the upper end of the heating shell 2.1 is fixedly connected with the evaporation section 3, the feeding section 1 and the evaporation section 3 are respectively communicated through a central downcomer 2.4 and a heat exchange tube 2.5, a plurality of heat exchange tubes 2.5 are vertically arranged between the periphery of the central downcomer 2.4 and the inner wall of the heating shell 2.1, the heat exchange tubes 2.5 are vertically filled between the periphery of the central downcomer 2.4 and the inner wall of the heating shell 2.1 in a clearance manner, the steam circular tube 2.6 is arranged on the outer wall of the middle upper part of the heating shell 2.1 along the circumferential direction, the steam circular tube 2.6 is communicated with the heating shell 2.1, the upper end port of the central downcomer 2.4 and the upper end port of the heat exchange tube 2.5 are respectively flush with the outer surface of the upper tube plate 2.3, the lower end port of the central downcomer 2.4 and the lower end port of the heat exchange tube 2.5 are respectively flush with the outer surface of the lower tube plate 2.2, a plurality of first condensed water output ports 2.7 are distributed at intervals on the side wall of the bottom end of the heating shell 2.1, and a steam circulating inlet 2.60 is arranged on the outer side wall of the steam circular tube 2.6, a plurality of strip-shaped steam inlets 2.61 communicated with the heating shell 2.1 are arranged on the inner side ring wall of the steam ring pipe 2.6, a safety valve 2.62 is arranged on a steam circulation inlet 2.60, the steam circulation inlet 2.60 is communicated with the heating shell 2.1 through the steam ring pipe 2.6 and the strip-shaped steam inlets 2.61, the quantity of steam entering the heating shell 2.1 is controlled through the safety valve 2.62, the steam enters the heating shell 2.1 through the strip-shaped steam inlets 2.61 to be heated, a pressure gauge interface 2.10, a thermometer interface 2.11 and a plurality of steam balance ports 2.12 distributed at equal intervals are respectively arranged on the steam ring pipe 2.6, a water filling port 2.9 is arranged on the side wall of the steam ring pipe 2.6, the temperature is adjusted when needed in the sugar making evaporation process, a small amount of water is added through the spare water filling port 2.9, and the temperature of the steam is adjusted; a steam ring pipe 2.6 is arranged on the structure of the heating section 2 to form a steam inlet channel, and a safety valve 2.62, a steam circulation inlet 2.60, a pressure gauge interface 2.10, a thermometer interface 2.11 and a balance port 2.12 are arranged on the steam ring pipe 2.6 to form a process channel and safety guarantee; 4 first condensed water output ports 2.27 are uniformly distributed at the position of the tube plate 2.2 under the heating body structure to discharge condensed steam, and a central downcomer 2.4 is used as an internal circulation channel and a sugar juice outlet discharge channel.

In the present invention, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the feeding section 1 includes a spherical cap casing 1.1, a sugar juice inlet pipe 1.2, a sugar juice outlet pipe 1.3 and a condensed water outlet pipe 1.4, the spherical cap casing 1.1 is a sealed cavity casing with a closed lower end and a closed upper end, the upper end of the spherical cap casing 1.1 is fixedly connected with the lower end of the heating casing 2.1, a plurality of sugar juice inlet pipes 1.2 extending into the spherical cap casing 1.1 from the outside are arranged around the bottom center of the spherical cap casing 1.1, the sugar juice outlet pipe 1.3 is arranged at the bottom center of the spherical cap casing 1.1, the lower end of the sugar juice outlet pipe 1.3 extends from the bottom inside the spherical cap casing 1.1 to the outside, the upper end of the sugar juice outlet pipe 1.3 extends into a central downcomer 2.4, and the top end of the condensed water outlet pipe 1.4 is provided with a plurality of condensed water outlet pipes 20 communicated with the upper surface of the lower downcomer pipe plate 2.3, the second condensed water output port 2.20 is connected to the outside of the spherical head shell 1.1 through a condensed water outlet pipe 1.4; a sugar juice conveying main pipe 1.20 is arranged below the outer portion of the bottom end of the spherical head shell 1.1, each condensed water outlet pipe 1.4 is communicated with the sugar juice conveying main pipe 1.20, a sugar juice drain outlet 1.5 is arranged in the center of the bottom end of the spherical head shell 1.1, and a feeding inspection hole 1.6 is formed in the side wall of the spherical head shell 1.1.

In the utility model, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the evaporation section 3 comprises an evaporation cylinder 3.0, an evaporation sealing cover body 3.1, a lower access hole 3.2, a juice steam outlet 3.3, an upper access hole 3.4, a pressure relief port 3.5, a balance port 3.6, a sight glass with lamp 3.7, an evaporation water inlet 3.8, a thermometer port 3.9, a pressure gauge port 3.10 and a flat sight glass 3.11, the upper and lower ends of the evaporation cylinder 3.0 are open, the ratio of the height and the diameter of the evaporation cylinder 3.0 is 1: 1-2: 1, the lower end of the evaporation cylinder 3.0 is hermetically welded on the upper end of the heating shell 2.1, the two ends of the central juice downcomer 2.4 and the two ends of the heat exchange tube 2.5 are respectively communicated between the evaporation cylinder 3.0 and the material inlet section 1, the evaporation sealing cover body 3.1 is hermetically fixed on the upper end of the evaporation cylinder 3.0, the steam outlet 3.3.1 is arranged at the center of the top end of the evaporation sealing cover body, the side wall of the evaporation sealing cover body 3.1 is provided with the upper access hole 3.4, the side wall of the upper end of the evaporation cylinder body 3.1 is provided with a plurality of balance ports 3.6, the side walls of the lower end of the evaporation cylinder body 3.1 are respectively provided with the lower access hole 3.2 and a thermometer interface 3.9, the side wall of the evaporation cylinder body 3.1 above the thermometer interface 3.9 is provided with the sight glass with a lamp 3.7, the side wall of the evaporation cylinder body 3.1 between the thermometer interface 3.9 and the sight glass with a lamp 3.7 is provided with a plurality of evaporation water inlets 3.8, and the side wall of the evaporation cylinder body 3.1 between the lower access hole 3.2 and the sight glass with a lamp 3.9 is respectively provided with the pressure gauge interface 3.10 and a first flat plate sight glass 3.11; the lower access hole 3.2 and the upper access hole 3.4 are used for overhauling respectively, the evaporated juice steam of the evaporation cylinder 3.0 is discharged from the juice steam outlet 3.3, when the juice steam pressure in the evaporation cylinder 3.0 is overlarge, pressure relief is carried out through the pressure relief opening 3.5, and the sight glass with a lamp 3.7 and the first flat sight glass 3.11 are used for observing the evaporation condition of the juice steam in the evaporation cylinder 3.0 respectively. The balance port 3.6 is used for adjusting the pressure in the evaporation cylinder 3.0, so that the pressure stability of the equipment is ensured. A juice steam circulation blocking assembly 3.13 is arranged at an upper end opening in the evaporation cylinder 3.0, and a cleaning pipeline 3.12 is arranged above the juice steam circulation blocking assembly 3.13 and in the evaporation sealing cover body 3.1.

In the present invention, as shown in fig. 5, 6 and 7, the juice vapor circulation baffle assembly 3.13 includes a V-shaped corrugated plate 3.130, a baffle plate 3.131, a supporting frame 3.132, wherein the supporting frame 3.132 is fixed along the inner wall of the lower port of the evaporation cylinder 3.0, the V-shaped corrugated plate 3.130 and the baffle plate 3.131 are fixed in the frame of the supporting frame 2.3 at intervals and alternately, and the V-shaped corrugated plate 3.130 is closely arranged and fixed in the vertical direction in the frame of the supporting frame 3.132 to form the exhaust passage 3.133, the baffle plate 3.131 is horizontally fixed in the frame of the supporting frame 3.132, the upper surface of the baffle plate 3.131 is flush with the upper end of the V-shaped corrugated plate 3.130, the baffle plate 3.131 is arranged in the central frame and the edge frame of the supporting frame 3.132, and the V-shaped corrugated plate 3.130 is arranged at intervals between the central frame and the edge frame of the supporting frame 3.132; the V-shaped corrugated plate 2.1 is used as the only channel for the rising and discharging of the juice steam, the surface contact is adopted to change the circulation direction of the juice steam, and the liquid drops are refluxed by the speed reduction and condensation; the baffle 3.131 is arranged at the periphery of the V-shaped corrugated plate 3.130 and is used for intercepting the rising of the juice steam, so that the juice steam can only circulate through the channel of the V-shaped corrugated plate; the support frame 3.132 is a fixed structure that secures the high efficiency V-plate corrugated plate assembly to the upper portion of the evaporation chamber; the central line of the sight glass with lamp 3.7 extends into the evaporation cylinder 3.0 and inclines towards the bottom end direction of the evaporation cylinder 3.0, the included angle between the central line of the sight glass with lamp 3.7 and the central line of the evaporation cylinder 3.0 is 45-60 degrees, the evaporation condition in the bottom of the evaporation cylinder 3.0 is observed through the sight glass with lamp 3.7, a plurality of non-condensing discharge pipelines 3.14 are arranged in the evaporation cylinder 3.0, the output ends of the non-condensing discharge pipelines 3.14 are laid along the upper tube plate 2.2 and extend to the outside of the evaporation cylinder 3.0, as shown in figures 8 and 9, the collection ends of the non-condensing discharge pipelines 3.14 are laid along the surface of the upper tube plate 2.2 and the outer wall of the central downcomer 2.4 in sequence and extend to the upper part of the lower tube plate 2.3 in the heating shell 2.1, sugar juice enters the spherical shell 1.1 through the sugar juice conveying main pipe 1.20 and the sugar juice inlet pipe 1.2, and gradually overflows to the heating shell 2.1.1, and then passes through the spherical end socket 1.4 in the central downcomer 2.1, and the steam passes through a steam ring pipe 2.6 and a strip-shaped steam inlet 2.61 from the steam circulation inlet 2.60 to the inside of the hot shell 2.1, the sugar juice is heated and concentrated in the circulation process of the heat exchange pipe 2.5 and the central downcomer 2.4, and the sugar juice is discharged through a sugar juice outlet pipe 1.3 after the concentration is finished.

The utility model discloses in, the sugar juice gets into spherical cap shape head casing 1.1 (feeding room or pan feeding section 1), heating casing 2.1 (heating body or heating section 2), evaporating cylinder 3.0 (evaporating room or evaporating section 3), is provided with in evaporating cylinder 3.0 (evaporating room or evaporating section 3) not condensed steam discharge pipe way 3.14, washs pipeline 3.12, juice steam circulation blocks subassembly 3.13. Structurally, two diameter schemes can be adopted, and the first scheme is as follows: the feeding section 1 and the heating section 2 have the same diameter, the evaporation section 3 and the evaporation sealing cover body 3.1 have the same diameter, and the diameter of the evaporation sealing cover body is slightly larger than that of the heating section 2 by 500-800 mm; the second scheme is as follows: the feeding section 1, the heating section 2, the evaporation section 3 and the evaporation sealing cover body 3.1 are all equal in diameter; the inside of the evaporation cylinder 3.0 (the evaporation chamber or the evaporation section 3) is provided with a V-shaped corrugated plate high-efficiency juice catcher, sugar juice and steam in the evaporation cylinder 3.0 carry out heat exchange, part of water in the sugar juice is changed into a steam state and separated out, the material depth is improved, and the purpose of evaporation concentration is achieved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A large-scale sugar manufacturing evaporating pot is characterized in that: the evaporating tank comprises an evaporating tank body, the evaporating tank body is composed of a feeding section, a heating section and an evaporating section which are sequentially connected into a whole from bottom to top, the heating section comprises a heating shell, an upper tube plate, a lower tube plate, a central downcomer, heat exchange tubes and a steam ring tube, the opening parts at the upper end and the lower end of the heating shell are respectively in sealing connection through the upper tube plate and the lower tube plate, the upper tube plate and the lower tube plate are supported and fixed in the heating shell through a Chinese character 'mi' -shaped support, the central downcomer is vertically arranged in the center of the heating shell and fixedly penetrates between the upper tube plate and the lower tube plate, the upper end of the feeding section is fixedly connected with the lower end of the heating shell, the upper end of the heating shell is fixedly connected with the evaporating section, the feeding section is communicated with the evaporating section through the central downcomer and the heat exchange tubes, and a plurality of heat exchange tubes are vertically arranged between the periphery of the central downcomer and the inner wall of the heating shell, the heat exchange tube is vertically filled between the periphery of the central downcomer and the inner wall of the heating shell in a clearance mode, the outer wall of the middle upper portion of the heating shell is provided with the steam ring tube along the circumferential direction, the steam ring tube is communicated with the heating shell, the upper end opening of the central downcomer and the upper end opening of the heat exchange tube are flush with the outer surface of the upper tube plate respectively, the lower end opening of the central downcomer and the lower end opening of the heat exchange tube are flush with the outer surface of the lower tube plate respectively, and a plurality of first condensate water output ports are distributed on the side wall of the bottom end of the heating shell at intervals.

2. The large sugar-making evaporation tank of claim 1, wherein: the outer side wall of the steam loop pipe is provided with a steam circulation inlet, a plurality of strip-shaped steam inlets communicated with the heating shell are formed in the inner side wall of the steam loop pipe, and a safety valve is arranged on the steam circulation inlet.

3. A large sugar-making evaporation tank according to claim 1 or 2, wherein: the steam ring pipe is also provided with a pressure gauge interface, a thermometer interface and a plurality of steam balance ports distributed at equal intervals, and the side wall of the steam ring pipe is provided with a water filling port.

4. The large sugar-making evaporation tank of claim 1, wherein: the feeding section comprises a spherical head shell, a sugar juice inlet pipe, a sugar juice outlet pipe and a condensed water outlet pipe, the spherical cap-shaped seal head shell is a seal cavity shell with a closed lower end and a closed upper end, the upper end of the spherical cap-shaped seal head shell is fixedly connected with the lower end of the heating shell, a plurality of sugar juice inlet pipes extending into the spherical head shell from the outside are arranged around the center of the bottom of the spherical head shell, the sugar juice outlet pipe is arranged in the center of the bottom of the spherical head shell, the lower end of the sugar juice outlet pipe extends out from the bottom end inside the spherical cap-shaped seal head shell, the upper end of the sugar juice outlet pipe extends into the central liquid descending pipe, a plurality of second condensate water output ports communicated with the upper surface of the lower tube plate are arranged at the top end of the condensate water outlet pipe, the second condensate water output port is connected to the outside of the spherical head shell through a condensate water outlet pipe.

5. The large sugar-making evaporation tank of claim 4, wherein: a sugar juice conveying main pipe is arranged below the outer portion of the bottom end of the spherical cap-shaped end enclosure shell, each condensed water outlet pipe is communicated with the sugar juice conveying main pipe, a sugar juice drain outlet is formed in the center close to the bottom end of the spherical cap-shaped end enclosure shell, and a feeding access hole is formed in the side wall of the spherical cap-shaped end enclosure shell.

6. The large sugar-making evaporation tank of claim 1, wherein: the evaporation section comprises an evaporation cylinder body, an evaporation sealing cover body, a lower access hole, a juice steam outlet, an upper access hole, a pressure relief port, an evaporation balance port, a sight glass with a lamp, an evaporation water inlet, a thermometer port, a pressure gauge port and a flat sight glass, the upper end and the lower end of the evaporation cylinder body are open, the lower end of the evaporation cylinder body is welded at the upper end of the heating shell in a sealing way, the two ends of a central downcomer and the two ends of a heat exchange tube are respectively communicated between the evaporation cylinder body and the feeding section, the evaporation sealing cover body is fixed at the upper end of the evaporation cylinder body in a sealing way, the juice steam outlet is arranged at the center of the top end of the evaporation sealing cover body, the upper access hole is arranged on the side wall of the evaporation sealing cover body, the plurality of evaporation balance ports are arranged on the side wall at the upper end of the evaporation cylinder body, and the lower access hole and the thermometer port are respectively arranged on the two side walls at the lower end of the evaporation cylinder body, the side wall of the evaporation cylinder above the thermometer interface is provided with the sight glass with the lamp, the side wall of the evaporation cylinder between the thermometer interface and the sight glass with the lamp is provided with a plurality of evaporation water inlets, and the side wall of the evaporation cylinder between the lower access hole and the thermometer interface is respectively provided with the pressure gauge interface and the flat sight glass.

7. The large sugar-making evaporation tank of claim 6, wherein: a juice steam circulation blocking component is arranged at an upper end opening in the evaporation cylinder body, and a cleaning pipeline is arranged above the juice steam circulation blocking component and in the evaporation sealing cover body.

8. The large sugar-making evaporation tank of claim 6, wherein: the central line of the sight glass with the lamp extends into the evaporation cylinder and inclines towards the bottom end of the evaporation cylinder, the included angle between the central line of the sight glass with the lamp and the central line of the evaporation cylinder is 45-60 degrees, and the ratio of the height to the diameter of the evaporation cylinder is 1: 1-2: 1.

9. The large sugar-making evaporation tank of claim 6, wherein: the multi-channel non-condensing discharge pipeline is arranged in the evaporation cylinder, the output end of the non-condensing discharge pipeline is laid along the upper pipe plate and extends to the outside of the evaporation cylinder, and the collection end of the non-condensing discharge pipeline is laid along the surface of the upper pipe plate and the outer wall of the central downcomer in sequence and extends to the upper part of the lower pipe plate in the heating shell.

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